參數名稱 Parameter name

單位Unit

參數值Value

額定電壓Rated voltage

kV

40.5

額定電流Rated current

A

1250

額定頻率Nominal frequency

Hz

50/60

短時(1min)工頻耐受電壓
Short time power frequency withstand voltage (1min)

kV

70

雷電沖擊耐受電壓
Lightning impulse withstand voltage

kV

170

額定短路開斷電流
Rated short circuit breaking current

kA

20

額定峰值耐受電流
Rated peak withstand current

kA

50

額定短路關合電流
Rated short circuit making current

kA

50

額定短時耐受電流
Rated short time withstand current

kA

20

額定短路持續時間
Rated duration of short circuit

S

4

額定單個電容器組開斷電流
Rated breaking current of single capacitor bank

A

630

額定背對背電容器組開斷電流
Rated breaking current of back to back capacitor bank

A

400

機械壽命
Mechanical endurance

次time

10000

觸頭自閉力
Closing force due to bellow and atmosphere

N

60±20

額定開距下的觸頭反力
Force required to hold contacts open at full stroke

N

145±20

觸頭允許磨損厚度Contact limit erosion

mm

3

真空滅弧室內部氣體壓力
Gas pressure inside vacuum interrupter

Pa

≤1.33×10ˉ³

運動部分的質量Weight of moving parts

kg

0.45

真空滅弧室質量
Weight of vacuum interrupter

kg

1.2

觸頭開距Clearance between open contacts

mm

15±1

平均分閘速度Average opening speed

m/s

1.6±0.2

平均合閘速度Average closing speed

m/s

0.8±0.2

額定觸頭壓力Rated contact force

N

700±100

觸頭合閘彈跳時間
Contact bouncing duration at closing operation

ms

≤2

觸頭合閘和分閘不同期性
Out of simultaneity of contact closing and opening

ms

≤2

分閘觸頭反彈幅值
Bouncing back amplitude of opening contact

mm

≤2